package edu.serg.mbar.ucon.interfaces;

import org.w3c.dom.Node;
import java.util.Vector;

/**
 * This interface must be implemented by Classes that provide the capability of processing the Expression node/element in the UCON Policy.
 * 
 * @author Sanaullah
 */

public interface ExpressionEvaluator {

	public Vector<Object> evaluateExpression(Node expressionNode, String subject, String object);
	
}
